CUET Mathematics - Rate of change of area of a circle with respect to radius (A) When r = 2 cm is 4 cm²/cm. (B) When r = 6 cm is 12 cm²/cm. (C) When r = 12 cm is 6 cm²/cm. (D) When r = 16 cm is 8 cm²/cm. Choose the correct answer from the options given below: | PYQs + Solutions | AfterBoards